diff --git a/src/cli/daemon-cli/register-service-commands.test.ts b/src/cli/daemon-cli/register-service-commands.test.ts
index 7c75c67163d..9e23f76af6a 100644
--- a/src/cli/daemon-cli/register-service-commands.test.ts
+++ b/src/cli/daemon-cli/register-service-commands.test.ts
@@ -37,7 +37,7 @@ function createGatewayParentLikeCommand() {
 
 function expectSingleDaemonCall(mockFn: ReturnType<typeof vi.fn>) {
   expect(mockFn).toHaveBeenCalledTimes(1);
-  const opts = mockFn.mock.calls.at(0)?.[0] as Record<string, unknown> | undefined;
+  const opts = mockFn.mock.calls[0]?.[0] as Record<string, unknown> | undefined;
   if (opts === undefined) {
     throw new Error("expected daemon call options");
   }